One of the best ways to make sure you get quality sleep at night and get to sleep early as well is to make sure you get proper sunlight early in the day. Getting sunlight early helps to set your circadian rhythms (internal clock) so that you are able to get to sleep at the time that you want.
For more excellent tips on how you can get to sleep and sleep well check out the book "7 unusual habits you need for good sleep". Trying these tips can help you get the best early sleep.